折反射双曲面型的全方位视觉传感器(ODVS)是一种快速、可靠、具有固定单视点成像特点的全景视觉信息采集设备。本文利用两个相同参数的具有固定单视点的ODVS在同一轴心线面对面的进行合成,设计了一种双目全景立体测量装置。利用两个ODVS的固定单一视点在同一轴心线上设计的特点,简化了成像单元的标定、极线的配准以及特征点匹配等烦琐的步骤。实验结果表明,本文设计的立体全方位视觉传感器能有效解决极线约束难题、快速实现立体图像的特征点匹配、降低市体测量的复杂度。
Hyperbolic-mirror-based omni-directional vision sensor (ODVS) is a kind of fast, reliable panoramic image acquisition equipment with fixed single view point. In this paper, a new type of binocular stereo ODVS is proposed, which is composed of two ODVS with same parameters; and the single view point of each ODVS is fixed on the same axis. Using the collinearity of the two view points, the binocular ODVS is able to easily align the azimuth; and the camera calibration, feature point matching, and other cumbersome steps have been simplified. Experiment results show that the design of the binocular stereo ODVS can solve the epipolar constraint problem effectively, realize three-dimensional image feature point matching rapidly, and reduce the complexity of three-dimensional measurement.